Tenoner



E. H. BRYANT April 3, 1951 TENONER 2 Sheets-Sheet 1 Filed May 5, 1948 S.1! v! mm M mv m VB T N/ T m v-W f By B \m AJ \Iw E. H. BRYANT April 3,1951 TENONER 2 Sheets-Sheet 2 ATTORNEYS.

Filed May 5, 1948 tenoners were not adapted 2,54 'i,so7

" TENONER Elmer H. Bryant, Oklahoma City, Okla., assignor of one-half toCyril Woodrow Bryant, Oklahoma City, Okla.

Application May's, 1948, Serial No. 25,249

My invention relates to tenoners and an'object of my invention is toprovide a tenoner adapted to overcome the disadvantage inherent in thetenoners known. and used heretofore. These tenoners were (if complicatedconstruction and in consequence so "expensive that the owners of smallcarpenter and cabinet maker shops could not: afford to use them.Furthermore, these w to be used in the field and'on the job. An objectof my invention therefore is to pro- :yide a tenoner of'simple'co'nstruction which is portable sothat it can be used in'thefield on a job, but at the same time is adapted to be mounted on astationary stand to be used in a shop.

Another object of my invention is to provide tenoner adapted to beadjusted to form ten o'nls ;of any desired thickness on boards of anyness.

A farmer hat 'off'my inventionis' to'prc ivid e a tenoner of thecharacter indicated above adapted to support boards of predeterminedlength. and to feed them to the cutting bits to f orm tenons ofpredetermined length.

A still further object .of my invention is to provide a tenoner of thecharacter indicated above adapted to be adjusted for, relishing afinished tenon.

; Other objects of myinvention not specifically mentioned may appear inthe following specification describing it with reference tothe'accompanyingdrawing illustrating a preferred embodiment of myinvention. It is, hcwever; to be understood, that invention is not to'b'e lim- -ited or restricted to the exact construction and combinationof parts described in the specificaltion and -s'hovvn'in the "drawing,but that such chan ges and modifications can be madewhich -fallwithinthescope of the claims appended hereto.

In order that my invention may be betterhnderstood, I will now proceedto describe it with reference to the accompanying drawing, in severalfigures of which similar parts are designated by similar referencecharacters andin which Figure 1 is a view in top plan of a tenoningmachine constructed in accordance with the pres- -'ent-invention. vi V rT?! Figure 2= is-a view-in side elevation efthesame.

.2 Claims.- (01. 144-203) Figure 3 is a view in elevation of the frontend of the machine.

Figure 4 is a vertical transverse section taken substantially on theline 4-4 of Figure 2 showing one position of the stop lever andassociated parts.

Figure 5 is a view corresponding to Figure 4 and machine bed B having aworking table I0 of substantially rectangular form. In the front edgeportion 'of the working table, a curved cutout is providedin order tofacilitate the manipula'ting of a slide S to be described later. On theleft-hand end portion of the working table an edge of said table.

" angle ironforming'a track l l is'secured, the for- Ward end'of whichis arranged. flush with the front'edge of the working table, andthe"rear end portion of which extends beyond the rear On the right handend'por- 'tion of the table in, a guide rail 52 is securedby "means of'aplurality of screws (1. This guide rail is formed by an angle iron, oneleg of which 'rests on the working table so that its edge is arrangedfiush'with the right hand edge of the table and that its other legextends upwardly therefrom. The guide rail l2 extends a comparativelylong distance beyond the rear edge of the working table. From the righthand edgeflof thetablea bar-likesupport member 13 extends to: the rightand is arranged with its rear surface flush with the 'rear edge of thetable. Adjacent the rearmost end of the guide rail I2 a plate "likebracket I4 is secured to the horizontal leg of the rail angle by meansof a plurality of bolts. "This plate bracket extends horizontally towardthe right and an electric motor I5 or the like is 'rigidlyimountedonfsaid bracket. 0n the end portion lfi'of the motor shaft IT pointingtoward the-left, a grooved driving sheave I8 is rigidly mounted." I i {Amachine head H'having a substantially right angle cross sectioncomprises a horizontal'bas'e portion-"ls and a'body portionlfl extendingsub- "staintiallyve'rticallyupward from said base portion of the guidemember. is securely connected with the left hand endportion. In theforward portion of the body an arcuate slot 21 is provided extendingsubstantially upwardly and downwardly and so that the concave edge ofthe slot faces rearwardly, and toward the rear edge of the body asimilar arouate slot 22. A pair of spaced supports 23, one disposed in aplane below the other, are mounted on the body for independent verticalpositioning and different angular relationships, and have cylindricalhousings 24 and 25 extending horizontally therefrom in parallel relationover the base portion 59. In each cylindrical housing, a cutter arbor 26is rotatably supported by means of ball bearings or the like (notshown). The cylindrical housings are arranged with respect to each otherso that the shanks of the arbors;

extend freely through the arcuate slots 2i and 22 respectively in thebody. On the end of each arbor shank, a sheave 27 is rigidly mounted andan idler sheave 28 is rotatably mounted ona shaft bolt 29 secured in andextending outwardly or to the right of the body 20 so that the idlersheave is located somewhat above and in front of the rear sheave 2?. Themachine Zhead H is mounted on the support member I3 and the platebracket is by means of bolts 30 extending through the base portion id.The driving sheave J8, thetwo arbor sheaves 2i and the idler sheave '28are arranged in a common plane alignment with each other so that a. belt3| can be trained over the idler sheave, the rear arbor sheave, thefront arbor sheave and back to the driving sheave in such a manner thatthe two arbor sheaves "are rotated in opposite directions. .end portionof each arbor, a multiple cutting On the front bit 32 is securely butexchangeably mounted. In order to reinforce the machine bed Byareinforcing member 33 consistingof an angle iron-or the like extendsbetween and is fastened to the rear end portion of the angle iron H andthe rail [2.

The above mentioned slide S or carriage has substantially the shape of aright angled triangle. The hypotenuse 34 is preferably made from a thatbar, on the right hand end of which a guide member 35 is secured in anydesired conventional manner. cross section shaped like .an inverted Vand slid- This guide member has preferably a ably engages the upper edgeof the angle form- 'ing the guide rail l2. The other side of the rightangled slide S is formed preferably by an angle iron 36 welded orotherwise secured with its right hand end portion to the forward endpor- The angle iron 36 tion of the hypotenuse 34 and extends toward theleft beyondthis connection as shown at 37.

A wheel or roller 38 is rotatably secured under the junction of thehypotenuse 34 and the angle iron 36, sothat the plane surface of theslide S is arranged parallel to the axis of the cutter arbors 26 whentheslide is arranged on the machine bed B in workin position, that means sothat the guide member 35 is located 'slidabiy on the guide rail 12 andthat the roller 38 can travel on the track H. To reinforce the slide Sand to improve the supporting capacity thereof, a plurality ofintermediate members 39 are arranged between the hypotenuse 34 and theangle iron 36 and are spaced from each other .and

extend parallel to the guide member 35. p

A pair of curved adjusting slots 40 are provided in the body 20 inspaced parallel relation .with respect to each of the slots 2| and 22.An adju i .bol fl mo t d-7 in e ch of the sup-m 4 ports 23 and extendsthrough adjacent ones of the slots 40. Both of the supports 23 are eachpivotally mounted on a bolt 4| passing through the end thereof oppositefrom the bolt 4| and secured in the body 20. On the bolt extendingthrough adjacent ones of the slots 40, for the right hand support 23, alocking lever 42 is threaded and is adapted to force a Washer 43 on thebolt into clamping engagement with the body 20. The adjusting bolt 4|,for the left hand support 23 (Figures 4 and 5) is provided with a nutand a washer (not shown) only for securing the same in any of itspositions of adjustment.

When a tenon '44 is to be formed on a board 45, it is placed onto theslide S so that one side edge abuts the upright leg of the angle iron 36forming one side of the triangular slides. Then the locking lever 42 ispivoted to loosen the grip of the washer on the body, and the arborhousing 23 is adjusted with the help of the lever 42 in the desiredworking position. That'means the arbors 26 are moved in their respectiveslots 2| and 22 until the vertical distance between the lowermostcutting edge of the cutting bit 32 on the raised arbor and the uppermostcutting edge of the bit secured to the lowered arbor is equal to thedesired thickness of thetenon to be produced. The arbor housing is thensecured in this position by tightening the grip of the washer on thebody by pivoting the adjusting lever into locking position. In order tofacilitate the cutting of tenons of equal length on boards of a certainlength, an adjustable stop 46 is slidably mounted on the angle iron 36and is adapted to be secured in adjusted position by any convenback andforth on the machine bed, so that the cutting bits will form a tenon ofthe desired thickness and length. When a relish 50 is to be formed onthe tenon, the lever 42 is pivoted to release the washer 43. The righthand support 23 is adjusted so that one cutting bit is disposed at thesame level as the finished tenon. A stop screw 5|, carried by a bracket5 I mounted on the outer side of the body 20 is provided to limit themovement of a lever 52, rigidly pivotally mounted on the said support,to facilitate the positioning of the latter relatively to the other, orleft hand support. The slide S is moved to force the edge of the tenonagainst the cutting bit to form the relish. The above described tenonermay be mounted 'on a stand of any preferred construction to be .ofhorizontally spaced supporting elements pivotally mounted on one side ofsaid main support, one of said elements being in a'plane slightly belowthe other, an arbor journalled in each of .said elements andextendingthrough the same and said main support, a cutting bit-mountedon the outer end of each; of said arbors, means for ing rotary motion tothe same and said cutting bits.

7 2,647,807 5 6 securing said elements in different angular re-REFERENCES CITED lationships' and power driven means intercom Thefollowing references are of record in the necting the inner ends of saidarbors for impartme of this patent: V v

5 UNITED STATES PATENTS 2. The invention as definedin claim 1, with aNumber Name Date fiat elongated base having said main support riS-83,671 Storer Nov. 3, 1868 ing transversely thereof toward one of itsends. 285,586 Doane Sept. 25, 1883 a bracket mounted at the said one endof said 395,526 Totman Jan. 1, 1889 base, an electric motor operativelyconnected with 10 690,447 Lynn Jan. 7, 1902 said driven means, a worksupporting slide mounted on said base and movable thereon rela- FOREIGNPATENTS tively to said cutting bits, and adjustable means Number CountryDate on said slide to buttress work pieces of different 41,631Switzerland July 16, 1907 sizes during cutting operations thereon. 15 5,0 G a t n Of 1 ELMER H. BRYANT.

